Assume that you are setting up a room for a conference. There will be about 20 people in the room, what is the best type of microphone setup to use assuming that there is no presenter at this site?

A.
one omnidirectional microphones: one at the of the room, one at the back of the room

B.
two unidirectional microphone: one at the front of the room, one at the back of the room

C.
one Tandberg AudoScience microphone mounted on the ceiling

D.
one unidirectional microphone in the center of the room